Donald Trump may have won the presidential election, but the scrutiny over his business behavior and ethics is only just beginning.

The Washington Post’s David Fahrenthold reports that the Trump Foundation has admitted to breaking rules that prohibit charities from “self-dealing” — i.e., when someone uses funds from their charity to financially benefit themselves, their family or their businesses.

This particular admission was contained in an IRS filing that the Trump Foundation made back in 2015, and it shows that the foundation copped to transferring “income or assets to a disqualified person.” As Fahrenthold notes, such a “disqualified person” might be either Trump himself, one of his immediate family members, or one of his own businesses.”